diff --git a/.CI/installLibraries.mos b/.CI/installLibraries.mos
index c546f77..4871669 100644
--- a/.CI/installLibraries.mos
+++ b/.CI/installLibraries.mos
@@ -111,6 +111,7 @@ for l in {
   {"ThermofluidStream", ""},
   {"ThermofluidStream", "main"},
   {"ThermoPower", "master"},
+  {"ThermoPower", "4.0.0-dev"},
   {"ThermoSysPro", "master"},
   {"TILMedia", "main"},
   {"TILMedia_AddOn_Tests", "main"},
diff --git a/configs/conf.json b/configs/conf.json
index fa47312..e038012 100644
--- a/configs/conf.json
+++ b/configs/conf.json
@@ -565,6 +565,11 @@
     "library":"ThermoPower",
     "optlevel":"-Os -march=native"
   },
+  {
+    "library":"ThermoPower",
+    "libraryVersion":"4.0.0-dev",
+    "optlevel":"-Os -march=native"
+  },
   {
     "library":"ThermoSysPro",
     "libraryVersion":"master",